The discussion revolves around solving the equation cos(x) = cos(17π/5), focusing on the periodic nature of the cosine function and the implications for determining values of x.
Some participants have provided insights into the periodic properties of cosine, suggesting that adding multiples of 2π yields equivalent angles. However, there is still some confusion regarding the notation used and the interpretation of certain expressions.
There are indications of potential typos in the expressions used, and the clarity of the original poster's statements is questioned. The discussion also touches on the need for further clarification regarding the integer values involved in the solution process.
It's not at all clear what you mean by "sin-(cos(17pi/5)". do you mean 'sine or cosine of that'? And, of course the "=" in "cos=" is a typo.Karma said:sin-(cos(17pi/5))
cos=(x+n2pi)=cos(x)
It's not at all clear what you mean by "sin-(cos(17pi/5)". do you mean 'sine or cosine of that'? And, of course the "=" in "cos=" is a typo.Karma said:sin-(cos(17pi/5))
cos=(x+n2pi)=cos(x)